trig

posted by .

find x in DMS if 2sinx-1=cscx

  • trig -

    2sinx-1=cscx
    2sin(x)-1 = 1/sin(x)
    2sin²(x)-sin(x)-1=0
    (2sin(x)+1)(sin(x)-1)=0
    sin(x)=-1/2 or sin(x)=1
    can you take it from here?

    Note that sin(x) is positive in the first and second quadrants.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. trig

    express this in sinx (1/ cscx + cotx )+ (1/cscx- cotx) i got 2sinx is that right?
  2. Trig

    Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (x=theta BTW)
  3. trig

    Find a numerical value of one trigonometric function of x if secxcotx=4 A.cscx=1/4 b.secx=4 c.secx=1/4 d.cscx=4
  4. trig

    I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x0= secx i(x)= cscx
  5. trig

    I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x)= secx i(x)= cscx
  6. Calculus

    integral of cscx^(2/3)(cot^3)x i know that cot^2x is csc^2(x)-1, but i just don't understand how to solve the cscx^(2/3), any help?
  7. Precalculus

    Rewrite 2sinx/(cotx+cscx) as an expression that doesn't involve a fraction.
  8. trig

    Solve exactly over the indicated interval: 2sinx+cscx=3, 0<theta<360
  9. trig

    cscx+1/cscx cosx = secx+tanx
  10. Precalculus/Trig

    I can't seem to prove these trig identities and would really appreciate help: 1. cosx + 1/sin^3x = cscx/1 - cosx I changed the 1: cosx/sin^3x + sin^3x/sin^3x = cscx/1-cosx Simplified: cosx + sin^3x/sin^3x = cscx/1-cosx I don't know …

More Similar Questions